WIth an engine like that, you'll be making a beast. Making sure it doesn't do mad wheelies will be important.

That would make for a pretty fun go-kart, but you could find a nice motor cycle engine that has a bashed up frame... I actually have a Yamaha 750 for this purpose, but it'* shaft drive and I may just trade the bike to a friend who has a Yamaha 450 (almost the same bike, but 2 cylinders instead of 3). I figured on having a total frame weight of around 150-200 lbs. With a 2 cylinder 4 stroke DOHC engine and a 5 speed tranny, it'll fly like no other. I already have the 4 wheel independent suspension designed up that will accomodate 18" worth of syspension travel. Once I get the time and money to undertake the build, it'll be hours of fun!!!

See the problem that you are going to encounter is that you will need to have all of the accessories hooked up so that it will run properly (less A/C). You'll need the radiator, alternator, all hoses and fans, etc. It would be drastically easier to use any chain driven motorcycle motor to power a cart.

1200cc gixxer motors make mean azz go kart motors!!!!!

I figured I would need all of this. The problem with getting a motorcycle engine is that I already have the Honda engine, so it is free. I have the rad and all that, so all I would really need to fix it to work in a kart would be to make some mounts for it, and figure out a way to run the shifter and throttle cables.

Could I delete the power steering and use something else? Or will it be too heavy? Could I attach the transmission output shaft to a sprocket and chain type thing and mount the engine in the middle? I am just brainstorming here.

You should weigh the engine/cradle and see just how heavy it is. You have to take that into account when you build the rest of the cart and the suspension must be made to handle that weight as well. You will be building one heavy cart with that engine/transmission.

The power steering could be deleted or it could be incorporated into the new front end of your cart. It'* all up to you. The most difficult part of this build would be making the frame and suspension heavy enough to accommadate the engine/tranny.

You could not just put a sprocket onto the output of the transmission because it would have 2 outputs for the right and left sides. Your best bet would be to somehow use the front subframe and possibly the struts/mounts from the honda (if you have the entire car) as the back part of your creation. Just take and fab up some solid links to take the place of the steering tie rods, that is unless you want rear steering...

If you wanted to pursue this, I could point you in the right direction. It all depends on if you have the entire car or just the engine/transmission. Just to warn you though, there is going to be ALOT of custom fabrication of frame, roll cage, and suspension (atleast for the front if you have the car).